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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // A set of common constants that are needed for the WebSocket handshake. | |
| 6 // In general, you should prefer using these constants to literal strings, | |
| 7 // except in tests. | |
| 8 // | |
| 9 // These constants cannot be used in files that are compiled on iOS, because | |
| 10 // this file is not compiled on iOS. | |
| 11 | |
| 12 #ifndef NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_CONSTANTS_H_ | |
| 13 #define NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_CONSTANTS_H_ | |
| 14 | |
| 15 #include "base/basictypes.h" | |
| 16 | |
| 17 // This file plases constants inside the ::net::websockets namespace to avoid | |
| 18 // risk of collisions with other symbols in libnet. | |
| 19 namespace net { | |
| 20 namespace websockets { | |
| 21 | |
| 22 // "HTTP/1.1" | |
| 23 // RFC6455 only requires HTTP/1.1 "or better" but in practice an HTTP version | |
| 24 // other than 1.1 should not occur in a WebSocket handshake. | |
| 25 extern const char kHttpProtocolVersion[]; | |
| 26 | |
| 27 // The Sec-WebSockey-Key challenge is 16 random bytes, base64 encoded. | |
| 28 extern const size_t kRawChallengeLength; | |
| 29 | |
| 30 // "Sec-WebSocket-Protocol" | |
| 31 extern const char kSecWebSocketProtocol[]; | |
| 32 | |
| 33 // "Sec-WebSocket-Extensions" | |
| 34 extern const char kSecWebSocketExtensions[]; | |
| 35 | |
| 36 // "Sec-WebSocket-Key" | |
| 37 extern const char kSecWebSocketKey[]; | |
| 38 | |
| 39 // "Sec-WebSocket-Accept" | |
| 40 extern const char kSecWebSocketAccept[]; | |
| 41 | |
| 42 // "Sec-WebSocket-Version" | |
| 43 extern const char kSecWebSocketVersion[]; | |
| 44 | |
| 45 // This implementation only supports one version of the WebSocket protocol, | |
| 46 // "13", as specified in RFC6455. If support for multiple versions is added in | |
| 47 // future, it will probably no longer be worth having a constant for this. | |
| 48 extern const char kSupportedVersion[]; | |
| 49 | |
| 50 // "Upgrade" | |
| 51 extern const char kUpgrade[]; | |
| 52 | |
| 53 // "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" as defined in section 4.1 of | |
| 54 // RFC6455. | |
| 55 extern const char kWebSocketGuid[]; | |
| 56 | |
| 57 // Colon-prefixed lowercase headers for SPDY3. | |
| 58 | |
| 59 // ":sec-websocket-protocol" | |
| 60 extern const char kSecWebSocketProtocolSpdy3[]; | |
| 61 | |
| 62 // ":sec-websocket-extensions" | |
| 63 extern const char kSecWebSocketExtensionsSpdy3[]; | |
| 64 | |
| 65 // Some parts of the code require lowercase versions of the header names in | |
| 66 // order to do case-insensitive comparisons, or because of SPDY. | |
| 67 // "sec-websocket-protocol" | |
| 68 extern const char* const kSecWebSocketProtocolLowercase; | |
| 69 | |
| 70 // "sec-websocket-extensions" | |
| 71 extern const char* const kSecWebSocketExtensionsLowercase; | |
| 72 | |
| 73 // "sec-webSocket-key" | |
| 74 extern const char kSecWebSocketKeyLowercase[]; | |
| 75 | |
| 76 // "sec-websocket-version" | |
| 77 extern const char kSecWebSocketVersionLowercase[]; | |
| 78 | |
| 79 // "upgrade" | |
| 80 extern const char kUpgradeLowercase[]; | |
| 81 | |
| 82 // "websocket", as used in the "Upgrade:" header. This is always lowercase | |
| 83 // (except in obsolete versions of the protocol). | |
| 84 extern const char kWebSocketLowercase[]; | |
| 85 | |
| 86 } // namespace websockets | |
| 87 } // namespace net | |
| 88 | |
| 89 #endif // NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_CONSTANTS_H_ | |
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